Question

if in triangle ABC and DEF
AB/DE=BC/FD
then they
will be similar
when​

Answer 1

Formally speaking, two triangles are similar when their corresponding angles are equal and their corresponding sides are proportional. For example, if triangles ABC and DEF are similar, then angle pairs AB and DE, BC and EF, and CA and FE are all equal. Also, AB/DE=BC/EF=CA/FD.